What are the fundamental principles behind the creation of virtual 3D space? Describe and explain 3D geometry.
Remember that you are trying to comprehensively explain the theory and applications of 3D with elucidated examples and consistently using subject terminology correctly.
Geometric Theory
Geometric Theory is a way to model objects or characters within a game. An initial mesh is put through a design process which gives the basic shape of an item or object which can be adapted with different types of textures. The mesh is created using the process of combined polygon, which have 3 key components; A vertice, an edge and a face. When another vertice is added, then a basic triangle polygon is formed with a face, which is also the most simple version that a polygon can become. Extra vertices can be added to create a shape called a quad which has 4 edges in total, which can continue to get more edges in total such as 8, 12, 16 etc.
http://giz-img.blogspot.co.uk/2014/03/common-app-post-25.html
This process is important because it is used almost always to model assets for a game, whether it be characters, items, objects etc. This process helps make create the models more precisely, as the polygons within the shape itself can be altered to changed to overall look more like the model you want to create with a smooth and realistic effect. Overall, the model is just 2D polygons stuck together and this helps model the structure more precisely as the vertices, edges and faces can be changed.
As you can see, this dolphin model has been created using triangular polygons. The polygons have been moved and distorted to obtain the right shape for the model and we can see how the triangles have allows this model to be created as the individual polygons can be moved and streched.
https://joedenny.wordpress.com/year-1/unit-66-3d-modelling/introduction-to-3d-modelling/
This is another model created but quad polygons have been used rather than triangular polygons. As you can see, each polygon has been altered to form the structure of a rhinos body as the 2D shapes have the ability to bend and become a 3D shape because each 2D shape is connected and working with each other,
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